Health-related quality of life and income-related social mobility in young adults.

BACKGROUND: To assess the association of income-related social mobility between the age of 13 and 30 years on health-related quality of life among young adults. METHODS: In 1988-89 n = 7,673 South Australian school children aged 13 years were sampled with n = 4,604 children (60.0%) and n = 4,476 parents (58.3%) returning questionnaires. In 2005-06 n = 632 baseline study participants responded (43.0% of those traced and living in Adelaide). RESULTS: Multivariate regressions adjusting for sex, tooth brushing and smoking status at age 30 showed that compared to upwardly mobile persons social disadvantage was associated (p < 0.05) with more oral health impact (Coeff = 5.5), lower EQ-VAS health state (Coeff = -5.8), and worse satisfaction with life scores (Coeff = -3.5) at age 30 years, while downward mobility was also associated with lower satisfaction with life scores (Coeff = -1.3). CONCLUSIONS: Stable income-related socioeconomic disadvantage was associated with more oral health impact, and lower health state and life satisfaction, while being downwardly mobile was associated with lower life satisfaction at age 30 years. Persons who were upwardly mobile were similar in health outcomes to stable advantaged persons.

Intergenerational mobility and adult oral health in a British cohort.

OBJECTIVES: This study aimed to characterize trajectories of intergeneration mobility from birth to age 33 years and to assess the influence of these trajectories on adult oral health. METHODS: Repeated data on occupational social class (birth and 7, 11, 16, 23 and 33 years) and two subjective oral health indicators (lifetime and past-year prevalence of persistent trouble with gums or mouth) measured at age 33 years, from the 1958 National Child Development Study, were used for this analysis. Latent class growth analysis (LCGA) was used to identify different trajectories of exposure to manual social class over time. Binary logistic regression was then used to explore the association between these trajectories and each oral health indicator, adjusting for participants' sex. RESULTS: Latent class growth analysis showed that a four trajectory model provided the best fit to the data. The four trajectories that emerged were identified as stable manual, stable nonmanual, late steep increase (those who were likely to be in the manual social class until age 16 years but ended up in the nonmanual social class afterwards) and steady increase (those whose likelihood of leaving the manual social class increased gradually over time). Lifetime and past-year prevalence of persistent trouble with gums or mouth was significantly higher in the stable manual trajectory than in all other trajectories. No differences were found between the stable nonmanual, late steep increase and steady increase trajectories. CONCLUSION: Although four distinctive trajectories were identified in the 1958 NCDS, only those who remained in the manual social class over time reported worse oral health by age 33 years. Proximal socioeconomic experiences may be more relevant to adult oral health than early life experiences.